Last updated: June 24, 2025
In Lone Rock, United States, the average temperature in September is a pleasant 18°C (65°F), offering a comfortable climate for outdoor activities. Visitors can expect a minimum temperature of 2°C (36°F) and the potential for warmer days with a maximum of 33°C (92°F). However, be prepared for some rain, as the region experiences approximately 118 mm (4.6 in) of precipitation over about 11 days. With an average humidity level of 74%, the air retains a bit of moisture, adding to the overall atmosphere of this captivating destination.
In September, in Lone Rock, the average temperature is 18°C (65°F). The maximum can reach 33°C (92°F), while the minimum can be as low as 2°C (36°F). This temperature range makes Lone Rock an ideal destination for travelers seeking both warm days and cool nights.
In Lone Rock in September, the precipitation amount is 118 mm (4.6 in) over the course of 11 days.
In Lone Rock in September humidity is 74%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can make even short walks feel laborious, leading travelers to seek shade and refreshment more often.
In Lone Rock in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Lone Rock.
UV Risk Categories
Weather in Lone Rock varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Lone Rock, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 43 mm (1.7 inches) | 84% | low |
| February Weather | -6°C (22°F) | 55 mm (2.2 inches) | 85% | moderate |
| March Weather | 2°C (36°F) | 57 mm (2.2 inches) | 84% | moderate |
| April Weather | 8°C (46°F) | 83 mm (3.3 inches) | 83% | very high |
| May Weather | 15°C (60°F) | 130 mm (5.1 inches) | 75% | very high |
| June Weather | 21°C (71°F) | 119 mm (4.7 inches) | 79% | very high |
| July Weather | 24°C (75°F) | 95 mm (3.7 inches) | 75% | very high |
| August Weather | 22°C (71°F) | 100 mm (3.9 inches) | 69% | very high |
| September Weather | 18°C (65°F) | 118 mm (4.6 inches) | 74% | very high |
| October Weather | 10°C (51°F) | 117 mm (4.6 inches) | 79% | moderate |
| November Weather | 2°C (36°F) | 46 mm (1.8 inches) | 88% | moderate |
| December Weather | -2°C (29°F) | 43 mm (1.7 inches) | 82% | low |